Table 7.4 summarizes the states of the input pull-ups in each mode.
Table 7.4
Input Pull-Up Transistor States (Port 2)
Hardware
Mode
Reset
Standby Mode
1
Off
Off
2
3
4
5
Off
Off
6
7
Legend:
Off
: The input pull-up transistor is always off.
On/off : The input pull-up transistor is on if P2PCR = 1 and P2DDR = 0. Otherwise, it is off.
Software
Standby Mode
Off
On/off
Other Modes
Off
On/off
175